Quarter	Belgian franc
1975-03-31	83.5419
1975-06-30	77.1312
1975-09-30	81.6139
1975-12-31	79.9327
1976-03-31	74.7233
1976-06-30	70.7574
1976-09-30	62.804
1976-12-31	61.1565
1977-03-31	62.9729
1977-06-30	62.0132
1977-09-30	62.4032
1977-12-31	62.7349
1978-03-31	58.3894
1978-06-30	60.7825
1978-09-30	60.2632
1978-12-31	58.8216
1979-03-31	61.1271
1979-06-30	64.1027
1979-09-30	62.1625
1979-12-31	62.3445
1980-03-31	67.5601
1980-06-30	66.491
1980-09-30	69.2607
1980-12-31	75.2762
1981-03-31	76.9679
1981-06-30	75.9659
1981-09-30	68.8895
1981-12-31	73.5544
1982-03-31	81.2115
1982-06-30	81.5898
1982-09-30	83.0911
1982-12-31	75.8931
1983-03-31	71.3094
1983-06-30	78.0191
1983-09-30	79.8629
1983-12-31	80.7022
1984-03-31	76.5437
1984-06-30	76.7666
1984-09-30	76.7994
1984-12-31	73.174
1985-03-31	76.3215
1985-06-30	79.8746
1985-09-30	76.4001
1985-12-31	72.3906
1986-03-31	70.5302
1986-06-30	68.8388
1986-09-30	60.8903
1986-12-31	59.3777
1987-03-31	59.981
1987-06-30	61.1138
1987-09-30	62.1789
1987-12-31	61.988
1988-03-31	65.3168
1988-06-30	65.0478
1988-09-30	66.3947
1988-12-31	67.2034
1989-03-31	66.8132
1989-06-30	63.4032
1989-09-30	63.6267
1989-12-31	57.3889
1990-03-31	57.6665
1990-06-30	59.7233
1990-09-30	60.333
1990-12-31	59.6505
1991-03-31	61.143
1991-06-30	60.482
1991-09-30	59.9546
1991-12-31	58.4995
1992-03-31	58.7905
1992-06-30	59.64
1992-09-30	51.6929
1992-12-31	50.3283
1993-03-31	49.9757
1993-06-30	52.4275
1993-09-30	52.7366
1993-12-31	53.4297
1994-03-31	51.052
1994-06-30	50.5398
1994-09-30	50.3442
1994-12-31	49.798
1995-03-31	45.7631
1995-06-30	45.2742
1995-09-30	46.3673
1995-12-31	45.6002
1996-03-31	46.3049
1996-06-30	48.6619
1996-09-30	49.1096
1996-12-31	54.3389
1997-03-31	56.4247
1997-06-30	59.8064
1997-09-30	58.8615
1997-12-31	60.9748
1998-03-31	63.8654
1998-06-30	62.0402
1998-09-30	58.6057
1998-12-31	57.1917
1999-03-31	60.3034
1999-06-30	61.6525
1999-09-30	62.3909
1999-12-31	64.8718
2000-03-31	67.2058
2000-06-30	63.7133
2000-09-30	67.5583
2000-12-31	64.3
2001-03-31	64.9009
2001-06-30	66.9546
2001-09-30	65.0889
2001-12-31	65.9534